Hi,I developed a free Android application for Content Curation, called Curation Genesys.Currently I am using for monetization adMob, but the revenues are not great, compared to the cost of promotion.For example today, i had 60 users, from which 41 where new, and 34 where from adWords that costed $10. The revenues from adMob are: 0.10$. So I get 100 times less than I am investing.Because the application is not a game I can't use incentives like in game currency to encourage people to share the application to social networks. The application just brake the content from a web page in to paragraphs that can be selected by the users.